I am surprised nobody has started a topic about this yet.
Currently there is a bug in the game where RWR will sporadically fail to work on planes that are equipped with MAWS. As you can see in the following clip that there is no MSL warning on the Eurofighter in these 3 instances.
The first one maybe, but the 2nd and 3rd clips if you look at the rwr it says missles and shows the missle icon coming towards you PLUS slightly above the RWR MISSLE was light up. so in my opinion it looks like you were tunnel visioned on a target and diddnt notice. you should post the sensor view in the replay to see what exactly happened. the first person view doesnt do much for me. Maybe someone else has this issue but i havent had it, thankfully.
That is the MAWS warning and not an RWR warning. The reason it doesn’t show up in the first clip is because the MAWS is not 360 coverage on Eurofighter while the RWR is.